AUGUST 4, 2026
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Case File

CVE-2021-3543

MEDIUM · CVSS 6.7 EPSS 0.30%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-06-01 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.7. See the original NVD description below for full technical details.

CVE
CVE-2021-3543
Severity
MEDIUM
CVSS
6.7
EPSS
0.30%

Original NVD Description

A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system.

Related CVEs

Other vulnerabilities affecting the same vendor(s)